[opendtv] Re: 70th Anniversary Blu-ray and standard DVDs of the Wizard of Oz

  • From: Cliff Benham <flyback1@xxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Thu, 01 Oct 2009 14:04:11 -0400

Stessen, Jeroen wrote:

Hello,

Cliff Benham:

Bert, it is only a 4:3 monitor, so it doesn't have a switch to change between 
4:3 and 16:9.


I'm with Bert on this one.


Cliff replies:
And Bert is wrong.


If I understand correctly, you have connected a 4:3 (computer) monitor
to the HDTV output of a BluRay player ? But this is wrong, an HDTV
display is implicitly 16:9 (or 21:9). 

Cliff replies:
I also connected a 4:3 Tektronix 650HR NTSC monitor to the NTSC output of the Blu-ray player and get a picture that will not fill the screen properly. 
The 'zoom' feature on the Philips player does not work in any mode.
The disk is authored such that it plays incorrectly [slightly squeezed horizontally] on a 16:9 HD display, and with an aspect ratio of 1:1 on an NTSC 4:3 dispaly. 

There are no 4:3 HDTV formats in

the ATSC table 3, therefore there are no such signals or displays.
You can not blame a BluRay player for sending the "wrong" signal to a
display that is not supposed to exist.


Cliff replies:
Not *supposed* to exist? They do exist. What reality does Philips operate under? 

A 4:3 movie is always pillarboxed to a 16:9 signal for display on a 16:9
display. There exists no output mode that is compatible with 4:3 displays.
You should not connect 4:3 computer monitors to HDTV signals, just because
they can handle the line and frame rates. It is an undefined use case.

Groeten,
-- Jeroen


Cliff replies:
This appears to be a good example of 'The Emperor's new clothes'.
Whether Philips likes it or not there ARE millions [billions?] of 4:3 displays in the world and your player won't output a proper signal to fill the screen of ANY of them.
What is the purpose of issuing a 1.33:1 film in the highest resolution possible only to have it play incorrectly on all displays? It is squeezed on 16:9 displays and it is square on 4:3 displays. 

It is not possible to play this fim in it's correct 1.33:1 aspect ratio.
This is a huge miss by all involved.

Cliff



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